【C#】C# 限制鼠标的移动范围

public struct RECT
        {
            public int Left;
            public int Top;
            public int Right;
            public int Bottom;
            public RECT(Int32 left, Int32 top, Int32 right, Int32 bottom)
            {
                Left = left;
                Top = top;
                Right = right;
                Bottom = bottom;
            }
        }

[DllImport("user32.dll")]
        static extern bool ClipCursor(IntPtr lpRect);
        [System.Runtime.InteropServices.DllImport("User32.dll")]
        static extern bool ClipCursor(ref RECT lpRect);
        public static void LimitMouse(int left, int top, int right, int bottom)
        {
            var rect = new RECT(left, top, right, bottom);
            bool flag = ClipCursor(ref rect);
        }
        public static void LimitMouse()
        {
            bool flag = ClipCursor(IntPtr.Zero);
        }

以上方法测试，可用，但是有一个问题，当使用双屏显示器的时候，设置的鼠标范围，超出一块屏幕的位置时，也就是在副屏的范围，该功能变失效了。